How can we enable editing or populate required header DFFs for External PRs

Summary:

We have an issue with Purchase Requisitions created by the Supply Chain Orchestration (SCO) process: these PRs are automatically submitted and bypass the normal approval flow, and they cannot be edited. Because we have many required header DFFs that must be populated, this behavior prevents us from completing the requisitions correctly. Is there a standard approach or a supported workaround to make SCO-generated PRs editable (or to populate the required DFFs before submission)?

Content (please ensure you mask any confidential information):

We have an issue with Purchase Requisitions created by the Supply Chain Orchestration (SCO) process: these PRs are automatically submitted and bypass the normal approval flow, and they cannot be edited. Because we have many required header DFFs that must be populated, this behavior prevents us from completing the requisitions correctly. Is there a standard approach or a supported workaround to make SCO-generated PRs editable (or to populate the required DFFs before submission)?